Access summarised full-length notes for topic 2 in design technology, covering:
2.1: Resources and Reserves
2.2: Waste Mitigation Strategies
2.3: Energy Utilisation, Storage and Distribution
2.4: Clean Technology
2.5 Green Design
2.6 Eco-Design
2.1 Resources and Reserves
Resources - Stock or supply of materials that are available in a given context
Renewable Energy - A natural resource that can be replenished with the passage of time or
does not abate at all
eg: solar, hydropower, biomass, geothermal, wind
Advantages Disadvantages
inexhaustible high set-up costs
release less carbon emissions inconsistent/ unreliable
not affected by human activity low energy density
Non-renewable Energy - Finite materials that will deplete over time
eg: fossil fuels, coal, nuclear, natural gas
Advantages Disadvantages
less expensive limited
more reliable exhaustible
release more carbon emissions
Reserve
quantity of a resource that can be economically recovered
proven reserve - resources that are economically recoverable using current technologies
probable reserve - resources that may be considered economically recoverable using
current or future technology
Renewability - refers to a resource that is inexhaustible therefore can be replenished quickly
either used for the same purpose or innovative purpose
Recycle
process of converting waste materials into new materials and products
using materials from obsolete products to create new products
decreases raw material consumption
lowers air and water pollution and reduces greenhouse gases as waste isn't discarded- it's
used for another purpose
Repair - reconstruction or repair of any part of an existing structure
Re-engineer - revision of an established design to improve its cost, performance, safety,
manufacturability, quality, waste reduction or usability
Recondition
rebuilding a product so that it is an “as new” product
could be by repairing, cleaning or replacing parts
Dematerialisation
reduction of total material and energy throughout of any product or service
improves product efficiency
eg: smaller, lighter products/packaging; reduced energy requirement for a product
Life Cycle Analysis
Technique used to assess the environmental impacts associated with all stages of a
products life, from raw materials extraction to processing, distribution, use, repair,
maintenance, disposal or recycling
2.2 Waste Mitigation Strategies 1
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